Automatic governor for gas producers



Patented Feb. 6, 1923.

e UNITED STATES 1,444,383 PATENT OFFICE.

GEORGE R. MODERMOTT, F CHICAGO, ILLINOIS.

AUTOMATIC GOVERNOR FOR GAS PRODUCERS.

Application led September 1, 1920. Serial No. 407,491.

To all 'whom it 'may concern:

Be it known ithat I?. (i1-10km; R. MODER- MUIT, avcitizen of the Lnited States, residing,r at Chicago, in the county of Cook und State of Illinois, have invented certain new and useful 'Improvements in an Automatic Governor for Gas Producers, of which the following is a specification.

My invention relates to an automatic governor' for gas producers and has for its primary. objecttheprov'ision of an automatic governor which will control the vollime of air to a gas producer without attengas main and producer become dirty,` the back pressure of the air forced through the vgas producer becomes lgreater' and the volurne of air 'supplied to theV gas producer thereby decreases, thus decreasing the quan- Itity of gas produced'bythe' gas producer. It

is not possible in the operation of gas producers to have each one watched at all times and control by hun the admission of steam to the prime mover so that the supply of air is increased as the back pressure increases, or diminished as the back pressuie decreases due to the variation in the fiow of the air through the producer or for some other cause, which causes un increase in the air delivery of the blower ehm-e the desired quantitv. 'Y A My improved device is entirely automatic n'its action nd :is the hack pressure increases the appar-.i tus is controlled so that an added volume of air is forced into the producer; or` as the buck pressure decreases, thus causinpr the blower to deliver too great :i quantity of air to the producer, the :1pparatus is also controlled. so that. u constant Asupply of air is maintained, thus keeping up the constant rate of gas production on the part of each producer.

These and other objects of my invention will be more fully and better understood by reference to the accompanying sheet of drawings.n in which* Figure l is a vertical vieu' partially in elevation and partially in section of my improved device;

Fignre2 is a view in elevation of the compound levers used to control the admission Figure 3 is a View in elevation of a stea driven blower for supplyingr air to the producer.

Referring now specificallyto the drawings, a section-of the foundation 10 upon which a gas producer is mounted is Shown having a blast pipe 11 extending therethrough to which an elbow 12 is connected in any suitable manner land to which a vel` tically extending blast pipe 13 is connected,

the'pipe 13 having an; integral annularli70 flange 14 at its upper end. A steam turbine l driven blower l5 is provitled having an out-` let pipe 16 having an annular flange 17, bolts 18 extending through the flanges 17,

the exhaust pipe 1,6 andthe flange 14 of the h ,blast pipe 13 so as to sitecurely hold these members together. Loc ted between the flanges 14 and 17 and h ld in position by the bolts 1Sis a gasket 9 having an orii fice 20 centrally located thereof, the orifice 20 beingr smaller in diam 1 r than the outlet 1G, also the blast pipe 13 leadingr to the gas' producer. A turbine 21 is provided for drivlng the blowerr15 whic is supplied with steam through a pipe 22 a strainer 23 be ing provided in the steam blower to prevent foreign particles enterinr the turbine '21. Secured to the turbine 21 is a pair of legs 24 and 25, upon which is mo int/ed a gasometer' 26 composed of a bottom memberf27 and a top plate 28 having` cylindrical sidewalls 29. Extendingr vertically through the gasometer 26 and through-the top cover 28 thereof is a rod 3() which is attached tio a guide member 30 which in tum is secured to a bell 31 located inside of said iasometer and of slightly smaller diameter than the gasometer 26. A guide rod 30" is secured to a plate member 32 seated in the bottom ofthe gusometer 26, and extends into theolowenj' end of the guide member 30 so the bell 31 is movable in a vertical direction. The someter 26 is approximately'lilled with water 33 or any other fluid and has a chamber 34 in the upper ortion thereof, the bell 31 being almost wiolly submerged in the water 33 or other liquid in the gasometer. A pi e` 35 is provided which extends through tiie side wall 29 of the gasometer and thence upward into the bell and terminates a short distance short of the upper part of thebell 31. The said pipe 35 extendsdown'wardly the rod 30.

and is connectedto the outlet pipe 16 from the blower through an opening 36. A second pipe 37 is provided which is connected to the blast pipe 13 at 38, the two pipes 35 and 37 being connected to the blast supply pipe on each side of the orifice 20 in the gasket 19. The pipe 37 is secured to the Wall 29 of the gasometer near its upper portion and leads into the upper part of the chamber 34 of the gasometer. Secured to the cover plate 28 is a valve base 39 upon which a valve is mounted and to which the steam supply pipe 22 is connected. rI`-'he valve 40 has a valve cap 41 secured thereto with the usual gland! 42 surrounding a valve stem 43. The valve l't'ap 41 has a vertically extending y lever 44 secured thereto by means of a rivet or bolt 45, the link or member 44 having a lever 46 fulcrumed thereon at its upper end, the lever 46 also being connected to the valve stem 43 by means of a link 47 and a rivet 48. Secured to said valve cap 41 is a member 49 slotted at its upper end and through which the lever 46 extends, the member 49 having a pin 50 extending therethrough so that the lever 46 is prevented from pulling the valve stem 43 out too great a distance, as hereinafter described` Mounted upon said cover 28 is a fulcrum member 51 through which a second lever 52 extends, the lever 52 being connected to the upper end of the rod 30 extending downwardly into the gasometer 26. A counterweight 53 is secured to the outer end of the lever 52 and exerts its force upward upon Connectingr the lever 46 and the lever 52 is a turnbuckle 54 which is secured to the lever 52 by means of a rivet 55 and to the lever 46 by means of a rivet '56. A counterweight 57 is adjustably secured to the outer end of the lever 46 which can be adjusted to different points upon the end of the lever 46. A steam exhaust pipe 58 is provided leading from the turbine 2l to a T 55) and into a pipe 6U which is connected to the blast pipe 13, a valve 6l being provided so that the supply of exhaust steam can be turned off at any time if de sired. A b v-pass pipe '62 is connected to the elbow 59 aud leads to a` valve 63 which in turn is connected to a pipe 64 which is connected to the steam supply pipe 22, so that it it is desired high pressure steam can be admitted around the turbine and into the blast pipe 13 at any time.4

In the operation of the device it will be understood that steam is admitted through the valve 40 into the supply pipe 22 and into the turbine 21 which starts an air blast through the outlet pipe 16 and through the orifice 2() of the gasket 19 into the blast supply pipe 13. The orifice 20 being very much smaller than the outlet pipe 16 of the blower, there will be considerable back pres- Sure developed ust at this point which will any differential 1n the pressure at the points 36 and 38 on each side of the orifice 2O will lbe registered through the movement of the gasometer bell 31. up or down, asgthe case may be, in the gasometer 264 which lwill, throu l1 the action of the levers52 and 46, if the ack pressure at the point`s38becomes greater, open the valve 40,. thusfadmitting a greater amount of steam into; the tu'rbine which will thus be driven at a higher rateof speed and resulting in an increased volume of air being supplied to the blastv pipe 13; the supply of steam admitted to the turbine being t erefore controlled by the diierential 1n the pressuresdeveloped upon each side of the orifice 20 so that when the volume of air supplied. to the gas producer is determined this volume is automatically continued, because anyincrease' in the back pressure will result in more steam being admitted to the turbine with the result that the turbine is driven faster and a greater supply of air driven into the blastfpipe.

It will also be understood that while I have illustrated and described this device as applied to a gas producer, it can be used upon any opera-tion where a given volume of gas is required to be supplied in any operation.

lVhile I have described more or less precisely the details of'construction of my invention, I do not wish to be understood as limiting mysel thereto, as I contemplate changes in form and the proportion of parts and the substitution of equivalents as circumstances may suggest or render ex edient, without departing from the spirit or scope of my invention.

I claim:

1. In combination, a blower, steam actuating means for driving said blower,` a blast conveying pipe leading from said blower, one portion of the passage through said pipe being restricted, a gasometer having a oating bell therein, a valve connected to said fioatingbell and controlling said steam actuating means, a pipe connected to said gasometer above said bell, and a second pipe connected to said gasometer below the bell, the said pipes being connected to the said blast conveying pi'pe to each sideof the said restricted portion. i

2. In combination, a blower, a stomp turbine connected to said blower, a blast conveying pipe leading from said blower having a passage therethrough. one portion of which is restricted, a gasometer having a fioating bell therein, pipes connected to Said blast conveying pipe on each side of sid restricted portion und terminating in Said said blast conveying pipe, a gasometer hav lng a floating bell therein, a valve connect ed to said floating belland 'controlling said blower actuating means, a ipe connected to said gasometer above said ell. and a second pi connected to said gasometer below the bel, the said pipes being` connected to the said blast conveying pipe on each side of said plate having a restricted opening therein.

Signed at Chicago, Illinois, of August, 1920.

GEORGE R. MGDERMOTT.

this 11th day v 

